<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
// import { userRegisterService, userLoginService } from '@/api/user'
import { ElMessage } from 'element-plus'
import { useUserStore } from '@/stores/index'
import { useRouter } from 'vue-router'
const isRegister = ref(false)
const form = ref()
// 注册
// 整个的用于提交的form数据对象
const formModel = ref({
  username: '',
  password: '',
  repassword: '',
})
// 整个表单的校验规则
//1.required: true,非空校验 message消息提示, trigger触发校验的时机 blur change
// 2.长度校验 min:xx , max:xx
// 3.正则校验 pattern: 正则规则
// 4.自定义校验 => 自己写逻辑校验(校验函数)
// validator:(rule, value, callback) => {}
// (1)rule 当前校验规则相关的信息
// (2)value 所校验的表单元素目前的表单值
// (3)callback  无论成功还是失败,都需要callback回调
//      - callback() 校验成功
//      -callback(new Error(错误信息))校验失败
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 10, message: '用户名必须是5-10位', trigger: 'blur' },
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { pattern: /^\S{6,15}$/, message: '密码必须是6-15位的非空字符', trigger: 'blur' },
  ],
  repassword: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { pattern: /^\S{6,15}$/, message: '密码必须是6-15位的非空字符', trigger: 'blur' },
    {
      // 自定义校验规则
      validator: (rule, value, callback) => {
        // 判断value 和 当前 form 中收集的 password 是否一致
        if (value !== formModel.value.password) {
          callback(new Error('两次输入密码不一致'))
        } else {
          callback() //就算校验成功了, 也需要callback
        }
      },
      trigger: 'blur',
    },
  ],
}

const register = async () => {
  try {
    // 注册成功之前,先进行校验, 校验成功 => 请求, 校验失败 => 自动提示
    await form.value.validate()
    // 发起注册请求
    // await userRegisterService(formModel.value)
    ElMessage.success('注册成功')
    isRegister.value = false
  } catch (err) {
    console.log(err)
  }
}
//导入pinia仓库里的user仓库
const userStore = useUserStore()
// 导入路由 并实例化为 router
const router = useRouter()
const login = async () => {
  await form.value.validate()
  // const res = await userLoginService(formModel.value)
  // 存入token在pinia
  // userStore.setToken(res.data.token)
  // 伪造token
  userStore.setToken('res.data.token')
  ElMessage.success('登录成功')
  // 使用路由跳转
  router.push('/')
}
watch(isRegister, () => {
  formModel.value = {
    username: '',
    password: '',
    repassword: '',
  }
})
</script>

<template>
  <!-- 
  1.结构相关 
  el-row表示一行,一行分成24份 
  el-col表示列
  (1) :span="12" 代表在一行中,占12份(50%)
  (2) :span="6" 表示在一行中,占6份(25%)
  (3):offset="3" 代表在一行中左侧 margin 份数

  el-form 整个表单组件
  el-form-item 表单的一行(一个表单域)

  2.校验相关
  (1) el-form => :model="ruleForm" 绑定整个form的数据对象{xxx,xxx,xxx}
  (2) el-form => :rules="rules"   绑定的整个rules规则对象{xxx,xxx,xxx}
  (3) 表单元素 => v-model="ruleForm.xxx" 给表单元素,绑定form的子属性
  (4) el-form-item => prop配置生效的哪个校验规则 (和rules中的字段要对应)
  -->
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册相关表单 -->
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button @click="register" class="button" type="primary" auto-insert-space>
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = false"> ← 返回 </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录 -->
      <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-else>
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button @click="login" class="button" type="primary" auto-insert-space>登录</el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="isRegister = true"> 注册 → </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background:
      url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
